Could've been an in-house make vs. an Irwin-Hodson production sign?
Nah, I remember seeing a couple variants of the shield back in the mid-2000s. I photographed one back in the day and used it to make a little GIF of the shield for my website, and the one I shot definitely used Times New Roman.
Based on the design from Lancaster’s book I think. This was one of the first “scenic byway” logos for the HCRH once it received its “historic” designation.